| Name | Meaning | Gender | Origin |
|---|
| Bubblegum | | Unisex | Hebrew |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Unisex | English |
| Bubo | | Unisex | Hebrew |
| Buckley | Ram's clearing | Male | English |
| Bucky | | Unisex | Hebrew |
| Buddy | Herald | Male | English |
| Bug | An insect. A disease-producing microorganism. An error in coding or logic that causes a malfunction in a computer a program. An electronic listening device. An enthusiasm. Slang for annoy. | Unisex | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Buster | One that breaks up something | Unisex | American English |
| Cadbury | Brand of chocolate | Unisex | English |
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Carden | Thistle | Male | English |
| Casey | From Cayce | Male | American English |
| Cera | From seraphim, meaning fiery ones. | Unisex | Latin |
| Cha-cha | | Unisex | Hebrew |
| Chachi | | Unisex | Hebrew |
| Champagne | French region | Unisex | French |
| Chaos | Gaping void | Unisex | Greek |
| Charley | Free man | Unisex | German |
| Charlie | Free man | Unisex | Germanic |
| Checkers | | Unisex | Hebrew |
| Chester | Camp | Male | Latin |
| Chi | Tree twig or branch | Male | Vietnamese |
| Chip | Free man | Male | German |
| Chogan | Black bird | Male | Native American |
| Cinder | | Unisex | Hebrew |
| Coco | A Pet Name. | Unisex | French |
| Cocoa | Cocoa Jumbo | Unisex | English |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |